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Scattering of particles in wave beam based on series expansion |
Li Ying-Le (李应乐)a, Li Jin (李瑾)a, Dong Qun-Feng (董群锋)b, Wang Ming-Jun (王明军)b |
a Shaanxi Xueqian Normal University, Xi'an 710100, China; b Institute of Radio Wave Propagation & Scattering, Xianyang Normal University, Xianyang 712000, China |
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Abstract Based on the orthogonalities of the vector wave functions, the expressions of scattering fields are developed as the particle in the zero order field and in the first order fields of x, y, and z, respectively. A general relation between the expansion coefficients of scattering field and incident field is presented. Taking the elliptical beam for example, the scattering property of a particle in beam is investigated. After analyzing the effects of the beam waist, irradiating distance, etc. on scattering property, the validity of the proposed algorithm is demonstrated. Results show that the beam waist may improve the particle identification property and the particle has a strong scattering both in the forward direction and in the backward direction. The method proposed is simple and is a new way of researching the scattering from particles in electromagnetic beams.
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Received: 28 September 2013
Revised: 17 December 2013
Accepted manuscript online:
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PACS:
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33.20.Fb
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(Raman and Rayleigh spectra (including optical scattering) ?)
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52.25.Os
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(Emission, absorption, and scattering of electromagnetic radiation ?)
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41.85.Ap
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42.25.Bs
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(Wave propagation, transmission and absorption)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60971079, 61271110, and 61102018). |
Corresponding Authors:
Li Ying-Le
E-mail: liyinglexidian@126.com
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Cite this article:
Li Ying-Le (李应乐), Li Jin (李瑾), Dong Qun-Feng (董群锋), Wang Ming-Jun (王明军) Scattering of particles in wave beam based on series expansion 2014 Chin. Phys. B 23 063301
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